506512656667 has 4 divisors (see below), whose sum is σ = 522851774656. Its totient is φ = 490173538680.

The previous prime is 506512656659. The next prime is 506512656677. The reversal of 506512656667 is 766656215605.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 506512656667 - 2³ = 506512656659 is a prime.

It is a super-3 number, since 3×506512656667³ (a number of 36 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (506512656607) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8169558948 + ... + 8169559009.

It is an arithmetic number, because the mean of its divisors is an integer number (130712943664).

Almost surely, 2^506512656667 is an apocalyptic number.

506512656667 is a deficient number, since it is larger than the sum of its proper divisors (16339117989).

506512656667 is a wasteful number, since it uses less digits than its factorization.

506512656667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16339117988.

The product of its (nonzero) digits is 13608000, while the sum is 55.

The spelling of 506512656667 in words is "five hundred six billion, five hundred twelve million, six hundred fifty-six thousand, six hundred sixty-seven".